What is SG Casting? The Modern Solution for Stronger, Longer-Lasting Components

SG Casting, short for Spheroidal Graphite Iron Casting or Ductile Iron Casting, is an advanced casting technique that produces metal components with exceptional strength, flexibility, and wear resistance. The process involves adding magnesium to molten iron, which changes the graphite structure from fragile flakes to smooth nodules. This microstructural change results in steel-like toughness combined with cast iron’s corrosion resistance.

Thanks to these properties, SG Casting is widely used in automotive manufacturing, construction, heavy engineering, water supply systems, and agricultural machinery. It delivers reliability under high loads, absorbs vibration effectively, and offers a long operational life—all while remaining cost-efficient to produce.

At Sagar Foundry, we craft SG Castings with precision using state-of-the-art melting, molding, and inspection technologies, ensuring every product meets the exact needs of demanding industrial applications.